package demo16;

import java.io.*;

/**
 * @author Huangjin
 * @version 1.0
 * describe:
 * @date 2023/3/8 17:40
 */
public class CopyDemo3Buffered {
    public static void main(String[] args) throws IOException {
        FileInputStream fis = new FileInputStream("3.jpg");
        BufferedInputStream bis = new BufferedInputStream(fis);
        FileOutputStream fos = new FileOutputStream("3_one.jpg");
        BufferedOutputStream bos = new BufferedOutputStream(fos);
        long start = System.currentTimeMillis();
        int d;
        while ((d=bis.read())!=-1){
            bos.write(d);
        }
        long end = System.currentTimeMillis();
        System.out.println("复制完毕！耗时："+(end-start)+"ms");
        bis.close();
        bos.close();
    }
}
